Transition to university

Hannah Aldous on Combining Logarithm Rules to Solve Equations 8 years, 6 months ago

Gave some feedback: Has some problems

Hannah Aldous on Combining Logarithm Rules to Solve Equations 8 years, 6 months ago

Gave some feedback: Doesn't work

Lauren Richards on Converting between Mixed Numbers and Improper Fractions 8 years, 6 months ago

Gave some feedback: Needs to be tested

Hannah Aldous on Using Laws for Addition and Subtraction of Logarithms 8 years, 6 months ago

Gave some feedback: Needs to be tested

Christian Lawson-Perfect on Using the Quadratic Formula to Solve Equations of the Form $ax^2 +bx+c=0$ 8 years, 6 months ago

Gave some feedback: Has some problems

Christian Lawson-Perfect commented on Using the Quadratic Formula to Solve Equations of the Form $ax^2 +bx+c=0$ 8 years, 6 months ago

The non-zero right-hand sides in part a are gotchas: I'd like to have a nice part first, where the right-hand side is zero.

Could you make the coefficients in part b work so that you get integers out? You want to see if the student can work out how to deal with getting an algebraic answer, and rounding errors would be a distraction.

In part b it looks like the roots are the wrong way round - the lowest root is second.

You could split this into two questions: "use the quadratic formula to solve an equation with non-zero RHS", and "use the quadratic formula to solve an equation in terms of another variable".

Bradley Bush on Find the equation of a line through two points - zero gradient 8 years, 6 months ago

Gave some feedback: Needs to be tested

Christian Lawson-Perfect on Expansion of brackets 8 years, 6 months ago

Gave some feedback: Has some problems

Christian Lawson-Perfect commented on Expansion of brackets 8 years, 6 months ago

In part a, when a[1]=1, I didn't get any brackets. Either make sure it's greater than 1, or turn off the unitFactor rule.

You need to give feedback messages for the string restrictions. "It doesn't look like you've expanded - make sure you don't use any brackets in your answer" would do.

Did you try adding expected variable names to the parts?

Elliott Fletcher commented on Converting between Mixed Numbers and Improper Fractions 8 years, 6 months ago

I think this question is really good and works well. I just noticed a few grammatical things that might need to be changed.

Main Parts

a) good

b) good

c) good, but i think you should say "reduce them down to their simplest form" instead of "reduce down to their simplest form".

d) the i and ii should be in italics as they are in part c) (maybe shouldn't be bold too).

Not entirely sure, but i think there should be full stops after each of the fractions with the gaps on them in parts c and d.

Advice

I can't tell if you have done this or not, but it might be worth checking that when you are typing the a), b), c) etc in the advice, that you are just setting the format of each of them to "heading 4" and not making them bold as well.

I think "was" should be "is" in a) and b)

I would get rid of the "and", after the semi-colon, on the fifth line of a)

In c),

I think you need to add a line of text before your definitions of improper fractions and mixed numbers, for example i would write

"A mixed number is a number consisting of an integer and a proper fraction,

I.e a number of the form

a (b)/(c) where a is an integer and b/c is a proper fraction"

In d),

in i) and ii) i would add an extra line after you say what the new numerator of the proper fraction is. I think you need to simplify the proper fraction first before combining it with the integer to form the mixed number. I would say "Therefore, the proper fraction is ...". Then simplify it and then combine the simplified proper fraction with the integer at the end. Also, i think when you give the final answer i think you should put the improper fraction that you are changing before it to make the full transformation clear, e.g 13/6 = 2 1/6.

I would also change "This is in this question" to "In this question, this is".

Otheriwise, this looks good!

Bradley Bush on Find the equation of a line through two points - negative gradient 8 years, 6 months ago

Gave some feedback: Needs to be tested

Bradley Bush on Find the equation of a line through two points - positive gradient 8 years, 6 months ago

Gave some feedback: Needs to be tested

Lauren Richards commented on Percentages and ratios - box of chocolates 8 years, 6 months ago

I have made sure it will say the correct thing now! 

Lauren Richards on Percentages and ratios - box of chocolates 8 years, 6 months ago

Gave some feedback: Needs to be tested

Aiden McCall on Algebra vocabulary 8 years, 6 months ago

Gave some feedback: Needs to be tested

Christian Lawson-Perfect on Percentages and ratios - box of chocolates 8 years, 6 months ago

Gave some feedback: Has some problems